Book stcck washer



4 sheets-sheet 1 V N anni E Ton ATTORNEY April 18, 1933- G. G. MGARTHUR BooK sTooK WASHER Filed May 25, 1951 marja/1f m mt ad 2;

April 18, 1933. G. G. MCARTHUR 1,904,056

BOOK STOCK WASHER Filed May 25, 1931 4 Sheets-Sheet 2 u iwf/@WWINVENTOR pril 18, 1933.

G, G. MCARTHUR BOOK STOCK WASHER Filed May 25. 1951 4Sheets-Sheet 3 ATTORNEY April 18, 1933.

N Nk k G. G. MCARTHUR BOOK sToCK WASHER Filed May 25, 1931 4 Sheets-Sheet 4 ATTORNEY Patented Apr. 18, 1933 OFFICE* c fnoRGfEy e. ncAnTnUn, on NIAGARA FALLS, NEW Yeni;

Booz srccx WASHER Applieetion tiled rAlifax' 2.5.

AThe objectfot this invention is toi provide. means for removing printersand dark water from paper Stoekobtained from dis.- earded books and the like, after thestock has been cookedi in accordance with the usual procedure in handling this class of niateriaL A further object isto provide an apparatus which shallnclude a main tank with Water inlet and outlet connections,the tank mount- .ng a plurality of. rotatable` cylinders andan intermediate agitating device, all 01E Which elements are geared to a linel shaft, said cylinders being of special construction and having special suction means incorporated therein. Y i

A further object is to provide a particular form of valve controlling the/'suction through, the cylinders, the valve including anv outlet leading to a suction pump or to, some other discharge element.A 7 Y With the foregoing yand other objects in view, the invention consists in the novel features of construction and in the novel alrangement ofthe elements herein disclosed, it being understood that modiications, alterations or- Changes. may be lnacle Within thescope of the claims, Without, departing; from. the spirit of the. invention. i Y i In the drawings forming partof thislapj p licatiom-V Figure 1` is. avewin longitudinal section and elevation, showing the principal elements of the construction, some of these elements appearing diagrammatioally or conventionally. Y I

Figure 2 is a top Figure 3 is `a view inl vertical section through one ofv the suction cylinders., the view beingin a planewth the axis of rotation, andthe valve, valve casing and conf nections being shown. i i s v n Figure 4 is a Section through one of the cylinders in a direction transversely of. the axis of rotation, the view also showing a portion of the Structure below the cylinder.

f Figurey 5 is asection through the valve and its easing, the section-being on line. 5V-5 of Figure 3, e

A main tank or receptacle includes a loot-Y plan view ofi the appa- 1931.V seria; N07..Y 539,907.

tom 10side Wall's'll, and end Walls 12.' A longitudinal member 13 eXtendsbetWeen the end Walls 120r and transverse members V14 are positioned. between the element 13 and'V the Wall 11 located on the remote side of the tank.V 5.5- 1

Bearings, such as15l, arey provided on the Walls 11, for mounting cylinders appearing at the right and left of Figure 2. Other bear# ings 16 `serve to support the shaft 17 mounting the agitating device at the center of Fig- 69A ure 2, and including the hub portion 18 and the radial arms 19. Y .p v v Y A plurality of concave elements, such as those shown at 20, are provided beneath the' cylindersv and beneath the central agitating 6.@ d'evice,t hese concaves being supported on the trlnsverse elementsat points 21,22 andthe lie.` ll' f In order to drive allof these rotary elemental provide a line shaft 24 carrying the 7 9 Worms 25, and the latter meshing respectively with Worm Wheels 26, 27, 28. The cylinders are each provided With'a shaft 29,7and shaft 1,7 of the agitating device serves the correi sponding purpose, the tvvo cylinders and the agitating device being geared to the line shaft as disclosed in Figure 2. p e

Each cylinder` is provided With suction means, but it should be stated that the washingfluid is admitted from vinlet pipe-35, a 8-0 transversely extending trough is shown at 36, and the fluid passes through the concave elements 2O and throughroutlet pipe 38.` A Each cylinder is provided With pipes coni nected With an outlet valve casing,l and the latter is in communication With pipe 40 lead-V ing to a suction pump, or to some other point ofV discharge. Boards41, 42, 43, 44 are po. sitioned as shown, and elements 42 and44eX-V tend upwardly and are indirect contact `With 2Q the surfacerof the cylinders, for removin any material tending to adhere thereto. The elements 41v and@ guide or deect the fluidV in proper ldirection with reference to the concave elements 20 and the surface portions of the `rotatable cylinders.

Each cylinderincludes head or end mem-v bers 5 0, andA an enclosing Wall 51, and on the latter a plurality of angular bars or'the 10U Vlike designated 52 are adapted to support f plates 53 of sheet metal. Wires 54 are welded electrically to the sheet metal plate and directly support the wire mesh 55 of the cylinders. The mesh provides a peripheral Wall, and the material being treated is drawn against this wall by suction through low pressure pipes 60, and is loosened from' the wire mesh by engagement with boar-ds 42,44, as indicated.

Chambers are produced between the walls 51 and the metallic plates 53, in view of the angle bar construction, and suction pipes are in communication with these chambers, the latter being designated 61',said pipes having a plurality of entranceports if desired, or open ends. These pipes are in communication with pipes 62 connected with T elements 63. The connections just'y referred a to, constitute a portion of thel suction system,

and are in communication with radial pipes 64, and the latter are connected with elbows 65 mounted at 66 in the heads 50 `of each cylinder. Suction is established through these connect-ions and their channels 67 in the casing 68 extending horizontally with reference to the axis of each cylinder and concentric with reference to the axis of shaft 29. Y

The valve casing or housing 68 is provided withV a tapered bore 69, and a tapered valve 70 enters this chamber or bore, and is itself provided with a bore 71through which circulation toward the left is established through the channels 67, and thence through strainer 73 carried by the portion 74 adjacent to port 75 in the valveiunder consideration. The valveisstationary in each instance, and the cylinders formed with heads 50 rotate with reference to the respective valves, each valve casing 68 being also rotatable with the cylinder with which it is associated, because of direct connection with one of the heads 50 of the cylinder.

Each valve includes the portion 77 which may be angular in cross section, having flattened outer portions, and in order that the valve may be held stationary when desired, an enclosing member 78 is mounted on the adjacent tank wall, or other stationary element. The end portion 77 of the valve is provided with a bore for accommodating the threaded pipe connection 40 of the out.- let duct 40. A strainer is shown at 79, serv#V ing an obvious purpose at that point.

Valve 70 is further provided with an annular shoulder 80V engaged by a retaining member 81 through which adjusting bolts 82 pass. these bolts entering the end of the casing 68, and the shank portion of the bolts being surrounded by coiled springs 82 befl tween elements 81and the heads of the bolts, whereby a resilient mounting with reference to longitudinal fmovementV is afforded, the tapered valve being held to seat in an obvious manner.

Vcasingand cylinder.

currentof water or washing fluid admitted through pipey 3,5, and. is directed between the cylinder at the right of Fig. 1 and the concave yelement 20. Low air pressure or suction in pipe 40 produces low pressure in the outer chambers of the cylinder, within wire mesh 55,A and the stock lbeing Washed adheres to the mesh until removed by board 42, from'whichit discharges to the space between the arms 19 Vof the agitating device and the concave element 20 below the arms.

The washing fluid then passes below board 43 and below the left cylinder, where stock or material carried along :by the current adheres to the surface of the cylinder until removed by inclined board'44, and the reclaimed or washed material4 being suitably disposedof. y l Y One ofthe cylinders in which low air pressure'is employed for causing the ma terial to "adhere to the surface thereof, is shown in detail in Fig.3. The lsuction pipes are positioned as in Fig.`4, and the air passes through ducts'67, Fig.' 3,' chamberedV valve 71 and pipe 40, assumed to lead to a vacuum pump or low pressure chamber.

WhatIclaimisz' V 1. In avmachine of the class described, a plurality of cylinders having heads and'each including a perforated peripheral wall connecting the heads and an annular chamber Withinv said wall, means for rotatably mounting the cylinders, meansv including low pressure pipes opening into thechambers for producing suction within said chambers, a valve casing rotatable with each cylinder, anon-v rotatable valve member positioned within each casing and including a port, said casingseach having ducts in communication respectively'with the low pressure pipes and anI successively in communication with the port vof the valve during the rotation of each valve 2. A structure comprising the elements'of claim 1, and means for resiliently retaining the nonrotatable valve member in its casing and causing longitudinal thrust on the valve member without undulyretarding the movement ofthe cylinder.

3. A rotatable cylinderfor apparatus employed in cleansing paperstock, said cylin- Y der comprisingheads connected by an inner cylindrical wall and anvouter covering of openwork material, meansfor mounting said covering and spacing it from the cylindrical wall, a plurality of radial partitions connecting the perforated wall land inner cylindrical Wall, providing fluid chambers, eX-

haust ducts connected with the fluid chambers, a housing rigidly connected with one of the heads of each cylinder and having a main tapered bore and elongated channels for communication with the bore and with the duct-s, a chambered and ported valve Within the housing, and discharge means in communication vwith the chambered portion of the valve and with the channels through the valve port.

4. A structure comprising the'elements of l claim 3, in which the chambered and ported valve is non-rotatable and the Walls of the valve adjacent to the ported portion thereof act as a cut-off device in association with the longitudinal channels of the rotatable housing, and means for resiliently retaining the valve member in the tapered bore ofthe housing without unduly tion of the cylinder.

5. A device of the class described, comprising a'tank, fluid inlet and outlet means therefor, a series of concave elements between the inlet and outlet means, spaced rotatable cylinders each mounted above a concave element, the cylinders each including an outer arcuate openwork structure, low pressure eX- haust connections extending through the cylinders and including ducts having intake portions within said openwork structure causing material being treated to adhere to the cylinders by reducing fluid pressure in said cylinders, agitating members located between the cylinders, and devices for directing the material being treated from a cylinder to an adjacent agitating member and rom the latter to the next succeeding cyliner. v

In testimony whereof I aiix my signature,

GEORGE G. MCARTHUR.

retarding the rota- 

